Hammer



May 29, 1923. 1,457,168

A. E. HoRMAN HAMMER Filed Feb. 16. 1922 l /4 th." /Z

Patented May 29, 11923.

1,457,168, 1r eerie ALF-RED n. Hoei/ian, or knew Yoan,l n. Y:

HAMMER.

Application filed February 16, i922. Sera-IND; 537,123. f

To all 1li/'10m it may {lancera} y Be it known that I, ALFRED EHQRMAN, a citizenfoflthe United States, residing at New Yorlrcity, county of New York,l State 'Y of New York, have invented certain new,

andv useful Improvements in Hammers, of which the following is a specification.

My, invention `relates to hammers. The

'principal object of the invention is to provide improved means for supporting and actuating the Ahammer head so as to permit a relatively long st-roke'ofthe head and to maintain the head in avertical or upright position and thereby apply its force in the most effective way.` Other objects, features and advantages will appear more fullyin the following detailed description and appended claims.

Attention is hereby directed to the accompanying drawingforming a vpart ofthe -specication and illustrating one embodigated supporting'member or arm 6. The

horizontal axes of the pivots 2 and 3 are,

as shown, arranged'in the 'same vertical plane. Theqarm 4 is pivotedforup and down movement to a horizontal rod along which thesupporting member ora-rm. 4 is movable horizontally to permit the hammer l head to be'fpositioned over .diiferent parts Vof an anvil. The member .6 carries ladjacent its rearenda shaft S-,Carrying'llanged rollers 9 bearing against the cams l() which' are movable along shaft 7 with the supporting membery 4, the cams being also mounted for movement aloncr shaft 7 parallel to the shaft 7 and being held against rotation by said shafts. The cams 10 are so shaped as to cause the movement of the member '6 longitudinally with respect to the member 4 to the proper amount upon the up andy down movement of the hammer head to maintain the pivots2 and 3 in the same vertical plane and thereby maintain the hammer head vertical. The shaft 8 is fixed against longitudinal movement with respect to the member Gand a spring l1 presses uponthe said shaft to holdtherollers- 9 in 'I engagementwithwthe cams l0. The 'springl ll, as shown, bears at one end upon a sleeve 12' surrounding the shaft ,8 and vat' the other end upon an adjustable bearing l41oarried lby the member 4.y This bearing, asvv shown. is in theV form of a screw threadedxfor longi tudinal movement in the memberA 4. andY adapted to be` locked in adjusted position spring ll tends. to press the memberi 6to# rcoi ybya [nut l5 bearing upon'v a washer'l.' The wards-they left (referring to Fig. l)l and with the-.form of cam shown tends tov lift the members 4 and 6 with the h`ammerhead.

' As' *the lspring l1 ,tends tofexpand, it tends to move the rollers 9'1 towards the' pivot-` shaft 7 and thereby to raise thenhammer yfrom the solid line positionshown in Fig.l 1. f" f i.75 it is possible to regulate the force tendingV By adjust-ment of the tension ofspring 1.1.

to move the hammer head upwardly.-y .The

and l,sleeve vl2 vare arranged."- The member .member4 as shown isprov'ided with a llongitudinal slot; 17 in whichYthe'springw'll"v 1 6, as shown, is formed with ja portion-i675*` surrounding the member 4 and'v 'with side f portions 62 and 63 projecting from the partA o 6 and bearingvagainst the" sides Vof ther4 1 memberl 4.A -The supportingmembers 4vand'35 6 are. desirably arranged. vco-axially with` i eachother. Theymay be moved` to reciprov cate the hammer head .in any1` suitable` 'wa-y l ina vertical plane as bythe zcam 20 which, as shown, bears on arm 4 and Vis rotatable about an eccentric axisas at20. y' 1 ment of'myinventi'on it is'to be 'understood that changes within the 'scope of the append- 2 95` parting from Ithe spiritof my invention-. ;-l 1v ed claims may be made. therein'without `de- Whilel have shown a preferredl embodi! `v Having. v.thus described my invention,

what I 'claim as new and desire to secure by Letters Patent isz, o

Y "1. The vcombination of a hammer lhead',

elongated members connected thereto to s`up-v and means comprising a cam coacting with one of said members to position the same to maintain the head vertical duringits down ward movement. l

'port the same for up and-'down movement, j

2. The combination of a hammer head, l

elongated members' connecte'dthereto to supv Vport the same for'up and down movement, Y

meanscomprising a cam'coacting with one of said members to position the same to maintain the head vertical during it'sdownfy ward movement, and means supporting said meinbei's for horizontal movement. y

3. The Combination of a hammer head,

yelongated movable members substantially coaxial with each other and connected to said head, and supporting means for said members controlling the movement thereof to maintain said head vertical during its downward movement.

lill

.downw a rd 4. rllhe combination of a hammer head, elongated movable members coaxial with each other and connected to said head, and supporting means for said members ineludinga .cam controlling-the movement thereof to maintain said head vertical' during its downward movement.

5. rEhe combination of a hammer head, elongated movable members substantially coaxial 'with each other and connected to said head, and supporting means for said members controlling the movement thereotI to maintain said' head vertical during its movement, said supporting means pern'iitting horizontal movement ot said members. Y

6. The combination oit' a hannner head.

elongated members connected theretor to support the same tor np and down movement, means comprising a cam coacting with one of said members to position the same to maintain the head verticalduring its downward movement, and means for causing V'nioven'ient oi said members in a.r vertical Yone ot said members and a spring to hold said member in operative relation to said cam to'position saidiiieinber to` maintain the head vertical during Vits downward movement.

9. The combination of a hammer head, elongated movable members substantially coaxial with each other and connected to said head, supporting means for said members including a cam controlling the movement thereof to maintain said head vertical during its downward movement, and means for causing movement ot said members in a vertical plane.

l0. The combination of a hammer head,l

elongated movable members .eoaxialwith each other and provided with means pivotally connecting the same to the Vhead for movement relatively to the head about axes respectively in the sameV vertical plane, a pivotal support for yone of said members and means comprising a cam controlling the movement ot the other member to maintain said aires in the same vertical plane during the downward movement of the head.r

ll. The 'combination of a hammer head, A

elongated movable members coaxial with each other and provided with means -pivotally connecting the same to ythe Lhead for movement relatively to the head Iabout aires respectively in the same vertical plane, a pivotal support for one of `said members, means comprising a `cam controlling the movement of the other vmember to maintain Ysaid axes rvin the same- -vertical plane duri-ngT the downward movement of the head, and means Jr'or causing movement of the headk in a vertical plane.V

l2. The combination off a hammer head, elongated movable members provided with means pivotally connecting the same to the head for movement relatively to the head about axes respectively in the same vertical plane, a pivotal support torV one of said members, means comprising 'a cam Aeontrol ling the movement of the `other rmember 'to'v maintain said axes in the same vertical plane during the :downward movement of the head, and means for causing up and down movement of the head.

In testimony whereof, I have `signed my naine to this specification.

. ALFRED E. HORMAN. 

